R5F21324ANSP#U1 Renesas Electronics America, R5F21324ANSP#U1 Datasheet - Page 13

• Manufacturer Part Number: R5F21324ANSP#U1
• Description: MCU 1KB FLASH 16K ROM 20-LSSOP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/32Ar

Specifications of R5F21324ANSP#U1

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, PWM, Voltage Detect, WDT
• Number Of I /o: 15
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-LSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

11.
12.
11.1
11.2
11.3
11.4
11.5
11.6
11.7
11.8
12.1
12.2
10.1.1
11.1.1
11.1.2
11.1.3
11.1.4
11.1.5
11.2.1
11.2.2
11.2.3
11.3.1
11.3.2
11.3.3
11.3.4
11.3.5
11.3.6
11.3.7
11.3.8
11.3.9
11.3.10 Interrupt Priority Level Selection Circuit ......................................................................................... 135
11.4.1
11.4.2
11.4.3
11.4.4
11.4.5
11.5.1
11.6.1
11.6.2
11.8.1
11.8.2
11.8.3
11.8.4
11.8.5
Interrupts ..................................................................................................................................... 121
ID Code Areas ............................................................................................................................ 148
Overview ............................................................................................................................................... 121
Registers ................................................................................................................................................ 126
Interrupt Control .................................................................................................................................... 129
INT Interrupt ......................................................................................................................................... 136
Key Input Interrupt ................................................................................................................................ 139
Address Match Interrupt ........................................................................................................................ 141
Timer RC Interrupt, Synchronous Serial Communication Unit Interrupt, I
Flash Memory Interrupt (Interrupts with Multiple Interrupt Request Sources) .................................... 143
Notes on Interrupts ................................................................................................................................ 145
Overview ............................................................................................................................................... 148
Functions ............................................................................................................................................... 149
Protect Register (PRCR) ................................................................................................................... 120
Types of Interrupts ............................................................................................................................ 121
Software Interrupts ........................................................................................................................... 122
Special Interrupts .............................................................................................................................. 123
Peripheral Function Interrupts .......................................................................................................... 123
Interrupts and Interrupt Vectors ........................................................................................................ 124
Interrupt Control Register
(TREIC, S2TIC, S2RIC, KUPIC, ADIC, S0TIC, S0RIC, TRAIC, TRBIC, U2BCNIC, VCMP1IC,
VCMP2IC) ........................................................................................................................................ 126
Interrupt Control Register (FMRDYIC, TRCIC, SSUIC/IICIC) ..................................................... 127
INTi Interrupt Control Register (INTiIC) (i = 0, 1, 3) ...................................................................... 128
I Flag ................................................................................................................................................. 129
IR Bit ................................................................................................................................................. 129
Bits ILVL2 to ILVL0, IPL ................................................................................................................ 129
Interrupt Sequence ............................................................................................................................ 130
Interrupt Response Time ................................................................................................................... 131
IPL Change when Interrupt Request is Acknowledged .................................................................... 131
Saving Registers ............................................................................................................................... 132
Returning from Interrupt Routine ..................................................................................................... 134
Interrupt Priority ............................................................................................................................... 134
INTi Interrupt (i = 0, 1, 3) ................................................................................................................. 136
INT Interrupt Input Pin Select Register (INTSR) ............................................................................. 136
External Input Enable Register 0 (INTEN) ...................................................................................... 137
INT Input Filter Select Register 0 (INTF) ........................................................................................ 137
INTi Input Filter (i = 0, 1, 3) ............................................................................................................. 138
Key Input Enable Register 0 (KIEN) ................................................................................................ 140
Address Match Interrupt Enable Register i (AIERi) (i = 0 or 1) ...................................................... 142
Address Match Interrupt Register i (RMADi) (i = 0 or 1) ................................................................ 142
Reading Address 00000h .................................................................................................................. 145
SP Setting .......................................................................................................................................... 145
External Interrupt and Key Input Interrupt ....................................................................................... 145
Changing Interrupt Sources .............................................................................................................. 146
Rewriting Interrupt Control Register ................................................................................................ 147
A - 4
2
C bus Interface Interrupt, and